Sorting/export table & save dashboard not work

[yydpkm]

Hi,
I just set up banana dashboard. Right now I face 4 issues.

1. Sorting does not work. I choose a column but nothing change. Sorting check box is checked.
2. Save dashboard failed. It gives save failed dashboard could not be saved to Solr.
3. Export table will just export all column instead of select columns. Is this a bug?
4. Web page will out of memory once exceed certain rows number(around 150k). Is there any optimization to this?

Have anyone occur to same thing?
Thanks!